The atomic number of sodium (Na) is 11. The element phosphorous (P) is the fourth element to the right of sodium in the periodic table.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

What are the 4 phases of matter in order of increasing engery content?

What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles